1. Please select the hose fitting suitable for the size of the hose.
2. When inserting the tail part of the joint into the hose, apply oil on the hose and the tail of the hose, and do not bake it with fire. If it cannot be inserted, insert the connector after heating the hose with hot water.
3. Please insert the tail part of the serrated hose of the joint into the hose completely.
4. Do not use one-time push-in joints, which may cause the hose to rupture.
5. Please avoid excessive ligation with iron wire, please choose a special sleeve or cable tie.
6. Please avoid using scarred or rusted joints.